Improvement in horseshoe-machines



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CHARLES H. PERKINS, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE RHODEISLAND HORSESHOE COMPANY, OF SAME PLACE.

IMPROVEMENT IN HORSESHOE-MACHINES.

Specification forming part of Letters Patent No: 143,789, dated OctoberQi, 1873; applicationled f September 5, 1873.

To all whom it may concern:

Be it known that I, CHAnLEs H. PERKINS, of thefcity and county ofProvidence, in the State of Rhode Island, have invented certain new anduseful Improvements in Horseshoe- Machines 5 and I do hereby declarethat the following specification, taken in connection with the drawingsmaking a part of the same, is a full, clear, and exact descriptionthereof.

This invention isan improvement upon the machine described in theLetters Patent granted to myself and Richard W. Comstock, dated May 21,1867, and numbered 64,903.

Figure l is a top view. Fig. 2 is a side elevation.

In preparing a lblank to be plated out77 into the proper form for ahorseshoe, itis necessary to swage the bar-blank so4 as to thicken themetal at the heels, and then bend the bar into the horseshoe form.

The present improvement consists in suchA an arrangement and combinationof the swaging and bending devices that the operations of swaging thebar at the heels and then bending it into the form of a. shoe areperformed by consecutive operations without removing the blank from themachine. y

A is the frame of the machine. Motion is given to the machinery by powerapplied to a shaft upon which is the gear-wheel 13, the teeth of whichengage with the teeth of the larger wheel C, and which latter gives arota-ry movement to the crank D and the eccentrics E E', as seen atFig. 1. EF' are two swages arranged in suitable guides to have areciprocating sliding movement over the snrface of the platform G of themachine. They are operated, respectively, by the eecentrics E and E', towhich they are linked, and act in combination with the fixed butadjustable blocks H H', clamped to the platform, to swage the bar-blank.for the shoe, which has been previously out to the right length,creased, and placed in position on the machine, in readiness to beoperated upon. The eccentrics are set a very little out of coincidencein action, so that onewill commence to act just as the other hascompleted its work. So soon as the swages E E have done their work theycommence to retreat, and the sliding patternblock and bender I advance,the same being attached to a bar, K, which is fitted to suitable guides,and has a reciprocating sliding movement over the surface of theplatform G,

which is obtained from the crank D, to which such bar is linked. Thissliding bar also carries a transverse bar, L, furnished with inv clinedfaces a a., which latter, during the forward movement of such bar,impinge against friction-rollers b b in the ends of the levers M INI',and cause such levers to movel outward, whereby their opposite ends,which are furnished with rollers N N', are made to approach each other,and act to complete the bending of the bar at the heels, close to thepattern-block I, in a manner heretofore practiced and well understood.The said levers M M' are located underneath the platform of the table,and are pivoted thereto at c c', and the bending-rollers N N' are set onstuds, which project above the top surface of the table through curvedslots out therein.

To enable bar-blanks of different lengths to be accurately placed inposition, so that the horseshoe-bend shall be exactly midway between theends, I place on the platform of the machine a yielding gage, just infront o'f the stationary blocks H H'. This gage consists, in thisinstance, of two posts, S S bent over, so that the inner leg, formed bythe portion bent over, shall be a spring. As the distance between thesespring-bars is lessthan the length of the bar-blanks which are to beplaced between them on the platform, itfollows that whenever a blank isplaced in position both springs will be compressed somewhat, butequally, (being of the same stitfness,) and the bar will be centralizedwith respect to the sliding bender I.

What I claim as my invention, and desire to secure by Letters Patent,is-

The combination and arrangement of the swages E F', slidingpattern-block I, stationary blocks H H', and laterally-movingbending-rollers N N', substantially as described, whereby the operationsof swaging the ends of a bar-blank for a horseshoe and bending the samecan be consecutively performed, as set forth.

CHARLES HENRY PERKINS.

Witnesses 0. L. BoswonrI-r, Tnonis F. Gosenovn.

